In a birthday party, some children decided to play musical chair game. In the game the person playing the music has been advised to stop the music at any time in the interval of 5 mins after he start the music in each turn. On the basis of the given information, answer the following questions. 
 
(i) What is the probability that the music will stop within first 45 secs after starting? 
 
(ii) The probability that the music will stop within 69secs after starting is
 
(iii) The probability that the music will stop after 2 min after starting is 
 
(iv) The probability that the music will not stop within first 89 secs after starting is 
 
(v) The probability that the music will stop within first 105 secs after starting is